Diagnostic Value of CT Arthrography for Evaluation of Osteochondral Lesions at the Ankle

Background. To retrospectively determine the diagnostic value of computed tomography arthrography (CTA) of the ankle in the evaluation of (osteo)chondral lesions in comparison to conventional magnetic resonance imaging (MRI) and intraoperative findings. Methods. A total of N = 79 patients had CTAs...

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Main Authors:	Kirschke, Jan S., Braun, Sepp, Baum, Thomas, Holwein, Christian, Schaeffeler, Christoph, Imhoff, Andreas B., Rummeny, Ernst J., Woertler, Klaus, Jungmann, Pia M.
Format:	Online
Language:	English
Published:	Hindawi Publishing Corporation 2016
Online Access:	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5116491/

id	pubmed-5116491
recordtype	oai_dc
spelling	pubmed-51164912016-11-27 Diagnostic Value of CT Arthrography for Evaluation of Osteochondral Lesions at the Ankle Kirschke, Jan S. Braun, Sepp Baum, Thomas Holwein, Christian Schaeffeler, Christoph Imhoff, Andreas B. Rummeny, Ernst J. Woertler, Klaus Jungmann, Pia M. Research Article Background. To retrospectively determine the diagnostic value of computed tomography arthrography (CTA) of the ankle in the evaluation of (osteo)chondral lesions in comparison to conventional magnetic resonance imaging (MRI) and intraoperative findings. Methods. A total of N = 79 patients had CTAs and MRI of the ankle; in 17/79 cases surgical reports with statements on cartilage integrity were available. Cartilage lesions and bony defects at talus and tibia were scored according to defect depth and size by two radiologists. Statistical analysis included sensitivity analyses and Cohen's kappa calculations. Results. On CTA, 41/79 and 31/79 patients had full thickness cartilage defects at the talus and at the tibia, respectively. MRI was able to detect 54% of these defects. For the detection of full thickness cartilage lesions, interobserver agreement was substantial (0.72 ± 0.05) for CTA and moderate (0.55 ± 0.07) for MRI. In surgical reports, 88–92% and 46–62% of full thickness defects detected by CTA and MRI were described. CTA findings changed the further clinical management in 15.4% of cases. Conclusions. As compared to conventional MRI, CTA improves detection and visualization of cartilage defects at the ankle and is a relevant tool for treatment decisions in unclear cases. Hindawi Publishing Corporation 2016 2016-11-07 /pmc/articles/PMC5116491/ /pubmed/27891511 http://dx.doi.org/10.1155/2016/3594253 Text en Copyright © 2016 Jan S. Kirschke et al. https://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
repository_type	Open Access Journal
institution_category	Foreign Institution
institution	US National Center for Biotechnology Information
building	NCBI PubMed
collection	Online Access
language	English
format	Online
author	Kirschke, Jan S. Braun, Sepp Baum, Thomas Holwein, Christian Schaeffeler, Christoph Imhoff, Andreas B. Rummeny, Ernst J. Woertler, Klaus Jungmann, Pia M.
spellingShingle	Kirschke, Jan S. Braun, Sepp Baum, Thomas Holwein, Christian Schaeffeler, Christoph Imhoff, Andreas B. Rummeny, Ernst J. Woertler, Klaus Jungmann, Pia M. Diagnostic Value of CT Arthrography for Evaluation of Osteochondral Lesions at the Ankle
author_facet	Kirschke, Jan S. Braun, Sepp Baum, Thomas Holwein, Christian Schaeffeler, Christoph Imhoff, Andreas B. Rummeny, Ernst J. Woertler, Klaus Jungmann, Pia M.
author_sort	Kirschke, Jan S.
title	Diagnostic Value of CT Arthrography for Evaluation of Osteochondral Lesions at the Ankle
title_short	Diagnostic Value of CT Arthrography for Evaluation of Osteochondral Lesions at the Ankle
title_full	Diagnostic Value of CT Arthrography for Evaluation of Osteochondral Lesions at the Ankle
title_fullStr	Diagnostic Value of CT Arthrography for Evaluation of Osteochondral Lesions at the Ankle
title_full_unstemmed	Diagnostic Value of CT Arthrography for Evaluation of Osteochondral Lesions at the Ankle
title_sort	diagnostic value of ct arthrography for evaluation of osteochondral lesions at the ankle
description	Background. To retrospectively determine the diagnostic value of computed tomography arthrography (CTA) of the ankle in the evaluation of (osteo)chondral lesions in comparison to conventional magnetic resonance imaging (MRI) and intraoperative findings. Methods. A total of N = 79 patients had CTAs and MRI of the ankle; in 17/79 cases surgical reports with statements on cartilage integrity were available. Cartilage lesions and bony defects at talus and tibia were scored according to defect depth and size by two radiologists. Statistical analysis included sensitivity analyses and Cohen's kappa calculations. Results. On CTA, 41/79 and 31/79 patients had full thickness cartilage defects at the talus and at the tibia, respectively. MRI was able to detect 54% of these defects. For the detection of full thickness cartilage lesions, interobserver agreement was substantial (0.72 ± 0.05) for CTA and moderate (0.55 ± 0.07) for MRI. In surgical reports, 88–92% and 46–62% of full thickness defects detected by CTA and MRI were described. CTA findings changed the further clinical management in 15.4% of cases. Conclusions. As compared to conventional MRI, CTA improves detection and visualization of cartilage defects at the ankle and is a relevant tool for treatment decisions in unclear cases.
publisher	Hindawi Publishing Corporation
publishDate	2016
url	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5116491/
_version_	1613734229219213312

Diagnostic Value of CT Arthrography for Evaluation of Osteochondral Lesions at the Ankle

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